[Oneiric][SRU][PATCH 1/2] xhci: Remove scary warnings about transfer issues.

[leann.ogasawara at canonical.com]

From: Sarah Sharp <sarah.a.sharp at linux.intel.com>

BugLink: http://bugs.launchpad.net/bugs/929656

Getting a short packet or a babble error is usually a recoverable error,
so stop scaring users with warnings in dmesg when xHCI debugging is turned
off.

Signed-off-by: Sarah Sharp <sarah.a.sharp at linux.intel.com>
(cherry picked from commit 2a9227a5eeaeb3f91e3a72ceea4fa59016ca5d20)

Signed-off-by: Leann Ogasawara <leann.ogasawara at canonical.com>
---
 drivers/usb/host/xhci-ring.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index edcedc4..8c8888f 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1648,7 +1648,6 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 		}
 		break;
 	case COMP_SHORT_TX:
-		xhci_warn(xhci, "WARN: short transfer on control ep\n");
 		if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
 			*status = -EREMOTEIO;
 		else
@@ -1994,7 +1993,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 		xhci_dbg(xhci, "Stopped on No-op or Link TRB\n");
 		break;
 	case COMP_STALL:
-		xhci_warn(xhci, "WARN: Stalled endpoint\n");
+		xhci_dbg(xhci, "Stalled endpoint\n");
 		ep->ep_state |= EP_HALTED;
 		status = -EPIPE;
 		break;
@@ -2004,11 +2003,11 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 		break;
 	case COMP_SPLIT_ERR:
 	case COMP_TX_ERR:
-		xhci_warn(xhci, "WARN: transfer error on endpoint\n");
+		xhci_dbg(xhci, "Transfer error on endpoint\n");
 		status = -EPROTO;
 		break;
 	case COMP_BABBLE:
-		xhci_warn(xhci, "WARN: babble error on endpoint\n");
+		xhci_dbg(xhci, "Babble error on endpoint\n");
 		status = -EOVERFLOW;
 		break;
 	case COMP_DB_ERR:
-- 
1.7.5.4